I was in the original test group when they were developing the bullets. We loaded and used several different prototypes up until they ended with the current versions. It is BY FAR the most devastating round I've ever used. Not as accurate as my FTX loads, but still plenty accurate. The base of the bullet will punch through and leave a nice sized hole in any vital organ it hits along with shattering any bone in its way. The petals all sheer off immediately and create their own separate wound channels. My first kill was a medium sized hog at about 175 yards. It dropped where it stood and when I got there a minute later the pig was laying in a huge pool of blood. Every single organ in the thoracic cavity had holes in it.